ABC / DTC - NET MANUAL

for ABC800 / Facit DTC and ABC80

Copyright (C) 1982 SATTCO AB, SWEDEN

Verse 6

I-rAJ 1 983 (A)

9840 LJ

Information in this document is subject to change without notice.

ABC/DTC-Net MAJ83(A)- 1 83-05-09

RECORD OF CHANGES

Date Pages Description

83-05-09 6 -1 PR out on pin 9 on CPU-card 83-05-09 1 1 - 2 Unit shipped with login 'SD' 83-05-09 App.2 Differ. ABC80/ABC800 syst.progr.names - ABC/DTC-NET 0­ 82-10-31 - CONTENrrs 1. DESCRIPTION - 2. SOFTWARE, DOS VERSION 6.xx 2.1 General, DOS 2.2 Direct disc addressing though DOS 2.3 Direct I/O 2.4 ABC800/Facit DTC and ABC80 compatibility 2.5 New 5 1/4" l,iini-floppy disc structure .. 2.6 New card select code for 8" floppy 3. USER DIRECTORIES, ACCESS PRIVILEGIES .. 3.1 User directories 3.2 Log-in, User, Super-user 3.3 Updating common files .. 4. CENTRAL EXECUTION OF SYSTEM PROGRAMS

5. COMMUNICATION, ABC-NET CABLE 6. CENTRAL UNIT (7028), CONNECTION BOX, RAM-BOARD .. 7. TERMINAL UNITS (7029,7030)

8. PRINTER 8.1 Printer access, Device names PH: and RPR: 8.2 Spooling 8.3 Printer hardware interface 8.3.1 Standard .. 8.3.2 Optional 8.4 Print output format .. 9. ABC/DTC-Net UTILITY SOFTWARE 9.1 COPYLIB,DOSGEN,DISKCHEK,UFD 9. 2 I\~AKEUSER 9.3 LOGIN 9 • 4 RA r~~ 0 PT 9.5 SETSTART,STARTUP

10. INSTALLATION 10.1 Physical connections 10.2 Central system with printer 10.3 Terminal board for ABC800/Facit DTC 10.4 Terminal board for ABC80 10.5 Disc interfaces 1 1. START-UP PROCEDURE 12. TECHNICAL DATA - Appendix 1. DOS 6.xx GENERAL DISC HANDLING SYSTEM Appendix 2. New channel select 4108 Appendix 3. ABC802 pin configuration - Appendix 4. Installation (Swedi~h) - - ABC/DTC-Net 1 - 1 82-10-31

1. DESCRIPTION

r r

Central Disc Systems

ABC/DTCnet RAM Central processor Memory printer I Connection box J ...... I

ABC-Net cable -- ....,

ABC/ DTCn e tl ABC/DTC net ABC/DTC net fABC/DTCnet] [terminal J [terminal [termi:.~al lterminal

ABC800 ABC800 ABC80 ABC800 Facit DTC Facit DTC Facit DTC ABC80

Local Expansion printer I/O MEM

I,, I, I II ~ r ... ABC/DTC-Net 1 - 2 82-10-31

LARGEe EN r RAL DIS C s TOR AGE CAP ACIT Y AND COMrwl 0 N PR I NT ER•

The ABC/DTC-net system provides large disc storage capacity and a common printer, with printer buffers on disc. Up to 32 - peripheral computer systems can be connected to the central system.

ABC800, Facit DTC and ABC80 computers are connected to the central system through one ABC-Net cable and are simultaneously accessing the entire central disc systems and printer with all normal BASIC routines. ..

Each connected computer system is independant and sees the central disc drives and printer as normal disc and printer devices. -

One t or up to 12, disc devices can be interconnected in the .. c e n t r a I unit, vlinchester drives, au Floppy drives and 5 1/4" N1.ni-floppy drives.(Chapter 2.1 ) •.

UE3ER DIHECTORIES, ACCESS PROTECTION ..

User directories are defined to subdivide the central discs and prevent users from accessing each other's files. Files can .. also be individually write protected. A user log-in procedure is required for access to the .. ABC/DTC-net system, where passwords may be used for security.

LOCAL PRINTER (ABC800/DTC), LOCAL MEM. OR I/O EXPANSION.

A local printer may be used with each ABC800/Facit DTC system, but not for ABC80.

Each computer system may be expanded with extra memory or interface-cards in a local expansion box.

CONMUNICATION

All communication is through the 3-wire ABC-Net cable, with a ma x i.mu m total length of 300 m, to which the central unit, as well as each local computer are connected into a multi-drop config u rat i 0 11 • T 0 III i n i mi z e the d a tatrans fer 0 v e r the cab 1 e , some utility programs are partly executed within the central system. Efficient use of interrupts permits printing, command execution and data transmission to be done simultaneously.

Data is transfered block-wise in serial form with 19200 Baud. ..

INI1'IATING OPTIONS IN CENTRAL UNIT

The ABC/DTC-net system may be initialized at power-on or reset by executing a utility program within the central unit. This could be used to set the V24-printer baudrate or disc parameters. - AUTOSTART OPTION FOR ABC800/DTC ... Automatic log-in and/or start of a user program may be s e Le c t e d , - - ABC/DTC-Net 1 - 3 82-10-31

ABC/DTC-NET SYSTEM COMPONENTS

The ABC/DTC-net system consists of the components below, connected to the central disc systems, printer and the peripheral computer systems. At least one floppy or mini-floppy drive is required in the central unit to load the system utility initially. A DataBoard bus is required in the central system with slots for CPU, memory and interfaces.

1. The 7028 central unit.

-Central processor card with system program in EPROM and interface circuits for the ABC-Net cable and printer(V24/RS232C).

-A connection box with 1.5 m cable, between the processor card and the printer and the ABC-Net cable.

-System utility programs on a 8" or 5" diskette.

2. Central memory card with 16 Kbytes. The DataBoard 2009 board is recommended.

2. Terminal boards for each connected computer, including communication programs and DOS­ and printer simulation program in EPROM.

-7029 for ABC800/Facit DTC

-7030 for ABC80, including also a metal box and a 500 mm ribbon cable.

4. User constructed ABC-Net cables between each unit. Chapter 5 describes the connectors and the recommended cable type.

Optionally, a separate interface card may be used for the central printer. In this case, the interrupt signal must be available from the I/O slot used to the central processor slot in the central unit. The recommended cables has the corresponding standard connectors for the printer.

- 4001 Centronic interface - 4015 SP1 interface (Facit) - 611 6 Cable Centronics - 6109 Cable SP1 ABC/DTC-NET 2 - 1 82-10-31 - 2. SOFTWARE, DOS VERSION 6.xx

2.1 General -

The system is software transparent for normal BASIC programs. Each peripheral computer may have up to 6 files open - simultaneously, exactly as in a single user system. Files may be accessed sequentially and by random access. Specific sectors on the disc/diskettes can also be accessed through DOS. Note that DOS version 6 is used, with non-biased sector - addresses (chapter 2.2).

Special ABC/DTC-net-versions are normally needed for - commersial programs, protected against copying. The local software on the terminal card simulates the normal - DOS and printer routines. For ABC800/DTC only, a local printer may be used, in which case the d&vice name PR: is used for the local printer and RP~1: for the central. (Chapter 8.1). - Version 6.xx of DOS is used for both ABC800/Facit DTC and for ABC80. DOS version 6 is a general disc handling system for simultaneous control of different types of disc drives. -

As standard, the following device names are available: UFD: own user directory. HDO: HD1: HD2: HD3: max 4 Winchester devices rrl FO: ivi F 1: MF 2 : max 3 Double Track mini-floppy devices MOO: IJI 01 : max 2 Single Track mini-floppy devices ... SFO: SF1: SF2: max 3 Floppy devices 8" DRO: DR1: DR2: DR3: directed to the Winchester device

PH: ABC80 Central printer or ABC800/DTC Local printer RPR: ABC800/DTC Central printer.

In addition the following local device names are used: CAS: in ABC80 and ABC800/DTC V24: NUL: CON: only in ABC800/DTC.

The normal disc device name DRO:, DR1: etc. is by default directed to the Winchester disc (HDO:, HD1: etc.), but may be changed by the initiating RAMOPT.SYS program to access another - drive type.

When the system searches a file, the discs are searched in the .. default search order, which is the order in the table above.

NOTE! NO PATCH AREA is available above OFDOOH as for the earlier DOS.

NOTE! New card select code is used for the 4108 8" floppy interface. Use 56 octal (See sect. 10.5.3). ..

.. - ABC/DTC-NET 2 - 2 82-10-31

The default drive parameters are as below. They are also possible to modify at initiation.

Device Card Cluster Type name sel. size HDx: 44Q 32 Winchester drive MFx: 54Q 4 Double Track 5 1/4" Mini-floppy MOx: 55Q 1 Single Track 5 1 /4" ~1ini-floppy SFx: 56Q 4 Floppy 8"

2.2 Direct addressing through DOS

Programs, accessing the disc sectors directly through the DOS entrypoints, must be written for DOS version 6, as the sector addresses are changed, compared to earlier DOS versions. All sectors are now addressed from 0 and up consecutively, independant of the track numbers and the disc drive type.

Examples of programs, using direct access to the disc are LIB.BAC, COPYLIB.BAC and most commersial programs, protected against copying.

A user may be prevented from writing with direct sector access on the disc units, by a low privilege in the user parameters (Chapter 3.2).

2.3 Direct I/O to disc or printer interface.

Programs, doing direct I/O to the disc or printer interfaces can not be run in the ABC/DTC-net system. Note that a local printer(also with ABeaO) on a separate interface card of course can be driven by direct DataBoard I/O commands.

2.4 Compatibility ABC800/DTC and ABC80

BASIC programs, written for ABC800/DTC must be converted before use on ABCaO and vice versa. The program should be stored on disc in list form (.BAS) and loaded to the target computer for modifications. While loading a program, stored in list form, the computer checks the syntax and outputs error messages for the non-compatible statement lines. These stat~llients can then be changed to convert the program between ABC800/DTC and ABCaO format. Different versions of the BASIC non-listable utility programs are used for ABC800/DTC and ABCaO.

machine code programs (.ABS) may generally be run in both ABC800/DTC and ABC80. ABC/DTC-NET 2 - 3 82-10-31

2.5 New 5 1/4" lv1ini-floppy disc structure

The DOS version 6.xx uses a different library size than earlier versions and, for double track, also a different disc - sector for the bit- and lockout maps. The Mini-floppy structure is as below: - Drive type/nOS Library size Bitmap Lockout map Single Track Drive - Old DOS 8 sectors Sect: 6 Sect: 7 New DOS (vers. 6) 16 sectors Sect: 6 Sect: 7 - Double Track Drive 16 sectors Sect: 14 Sect: 15 .. Using single track diskettes, created with the old DOS (earlier than version 6), only 1·20 files may be created within one diskette to avoid overwriting the data. .. If a central double track mini-floppy drive is used, single track diskettes may be read from or copied from, but not written to. If a double track controller EPROM vers 6.10 or later is used, the diskette is automatically write-protected - if the switch on the interface is set to single track.

Note that different mini-floppy controller EPROMs are used for single and double track drives. The A6.xx controller EPROM is for double track, while the A5.xx conroller EPROM is for single track. ..

2.6 New card select code for the 8" standard floppy

The standard card select code for the 4108 8" floppy interface is 56 octal for the DOS vers 6.xx. See section 10.5.3 how to select the code......

.. ..

- - ABC/DTC-NET 3 - 1 82-10-31

3. USER DIRECTORIES, ACCESS PRIVILEGIES

3.1 User directories

The disc space may be divided into several directories, in several levels. A user file directory is treated by the DOS as an extra device, UFD:, with a separate file library. File accesses are not possible directly between different user file directories. To access files within a directory, a user must 'enter' this directory.

In a ABC/DTC-net system, a user automatically enters a directory at log-in to the system, but only a user with high privilegies, a 'super-user', has access to all directories. Each operator can from any terminal computer log-in to different directories, using different user names.

The device name of the current user file directory is always UFD:, independant of the directory name.

The normal disc library is called the master file directory (MFD) and contains all files, not belonging to a user file directory. The master file directory also contains the user directories as directory referencies (.Ufd). Files in MFD is accessible from all directories.

For each directory, at least 18 sectors are needed on the disc for the library. If the cluster size on the disc is larger, one c~uster is the minimum size.

The UFD.ABS, UFD.BAC programs are used to create, rename, enter or exit a user file directory. Note that only a supervising user ('super-user') has access to the UFD program in the ABC/DTC-net system.

The UFD-programs must reside in the master file directory on a disc/diskette.

See appendix 1 for a detailed description of the user file directory structure and the handling of the UFD program.

Common programs and data-base files reside in the master file. directory, accessible for all users. These files in the master file directory are accessible also from a user file directory. The common program ~iles may be write protected for safety.

The directory structure in the ABC/DTC-net system is normally only in two levels:

System files UFD UFD UFD UFD •••• UFD

Super-user and normal user directories ... ABC/DTC-NET 3 - 2 82-10-31 ... 3.2 Login, User, Super-User privilegies In the ABC/DTC-net system, a user on a connected computer - system has to be predefined, and enter through a log-in procedure. Without the log-in procedure, programs and data files in the master file directory can be accessed for reading or loaded for execution, but the central unit is - write-protected and direct sector accesses are not possible. Due to this, the LIB or COPYLIB programs can not be executed. - To log-in to the system, the LOGIN.BAC program is run. A user name and a password shall be given for access. If a directory is defined for a user, this directory is automatically entered at 1 og- in. -

To define new user parameters, the MAKEUSER.BAC program is run. The MAKEUSER can also delete or rename a user or define a - password to be used at log-in. The user may be connected to a user file directory by ~IAKEUSE·R, but the UFD-program must be used to create or delete a physical directory on the disc. - Note that a user, within a directory has access only to the files in this directory and in the master file directory. ...

Several users may be connected to the same directory.

Operators at several connected computers may log-in with the same user name at the same time. At the time of log-in the terminal number is connected to the given user parameters (directory and privilege). ...

A user privilege may be defined by one byte with a value between 1 and 255. A super-visor 'super-user' should have the privilege 255 to enable also future options.

Bit Function with the bit value 1

o Enable log-in 1 Super-user privilege. Enable executing UFD. 2 Enable writing on disc also with direct .. sector access. 3-7 Future options Examples of privilegies: - 1 Normal user with full access to his own directory and the MFD. Writing with direct sector access can not be done. 5 Normal user, which also can write on disc with direct access. 2 55: Super-user, which also can execute the UFD program to create new users.

Only a super-user can execute the UFD program. Sensitive programs like MAKEUSER, DOSGEN, DISKCHEK, RAMOPT.BAC should also be accessible only from a 'super-user'. These programs (not UFn or RAMOPT.SYS) should reside in a super-user directory. - With the UFD program, a super-user has full access to the entire central disc system, including other user directories. - ABC/DTC-NET 3 - ) 82-10-31

3.3 Updating common files

Files in the master file directory are accessible from all users. Several users may also log in to the same user directory to have simultaneous access to files.

In these cases no system protection exists for accessible files, unless they are write-protected. Care should be taken, not to update the same file from more than one user at a time. Note that 'update' here means writing records to the disc/diskette.

Changing a file is a two step process. Read a record and make the change in the file-buffer, then write the record back to the disc. While working with a record in the buffer, it is possible for another user to update the record on the disc, causing errors or missing data when the first user writes his record to the disc.

Use different user directories and different files if possible, otherwise the user program must control the updating procedure carefully. ABC/DTC-NET 4 - 1 82-10-31 .. 4. CENTRAL EXECUTION OF SYSTEM UTILITIES

Data transfer on the line is minimized by partly executing some system pr~grams within the central unit. For this .. purpose, the central unit includes 16 Kbytes of RAM. Some programs, like COPYLIB, can also be executed in the .. normal way, locally in the connected computers, but at a slower speed if large amounts of data shall be transferred. The central unit automatically executes some system programs locally if the central memory is occupied by another user. - Some programs, like RAMOPT are always executed in the central unit, and will not be started if the central memory is .. occupied. Examples of programs, executed partly in the central unit: - DOSGEN.ABS COPYLIB.ABS DISKCHEK.ABS RA~10PT. SYS

If a user turns off or resets his computer, while his system .. program is executing in the central unit, the central RAM memory is released after 3 minutes.

...

.. -

- ABC/DTC-NET 5­ 82-10-31

5. COMMUNICATION, ABC-NET CABLE

All units are interconnected via one 3-wire cable, the ABC-Net cable, which is connected to the central processor. The central processor controls the communication by polling the terminals, i.e. sending out requests on the line to one terminal at a time, until an answer is received.

Each terminal has a unique terminal number (0-31), set by the user on a dip-switch on the terminal card.

For printer protocol see chapter 8.3.

The data transfer is done in blocks of 256 bytes, which is the size of one disc sector. Physically, a serial, asynchronous protocol with V24 signal levels are used, but with special driver circuits and radio filters:

19200 Baud 8 data-bits Odd parity One stop bit

The output drivers, on each connected terminal card, drives current from +12V at logic "1", but releases the line to a high impedance at logic "0". Due to this design, the line is free to use by other users, also without power on a connected computer. The terminal cards are connected in a multi-drop configuration to the ABC-Net cable.

The physical ABC-Net cable is divided into separate cables between each connected unit, each of which has two parallel sockets for the cable.(Chapter 10.1).

The system is, due to this design, very easy to expand by connecting new units to the nearest computer in the chain.

The connectors on the cable should be normal audio-connector plugs in DIN standard, type SP5 with 5 pins.

The recommended cable is a multicore, 3-wire, shielded cable with at least 0.22 sq.mm area.

1,4 Data IN to terminals OUT from central unit

3,5 Data OUT from terminals Connector socket seen from outside ABC/DTC-NET 6­ 83-05-09 6. 7028 CENTRAL UNIT, CONNECTION BOX, RAM BOARD - The 7028 central processor board is a DataBoard 1062 single board c ompu t e r , with extra line drivers, clock circuit and ABC/DTC-net system program in EPROM. - A short cable (1.5 m) with a connection box is included, to be connected to the central processor via a 9-pin connector. The box provides two standard DIN sockets for the ABC-Net cable and one DB25S socket for the central printer. Connector on the central processor: -

1 Output to ABC-Net pin 1 ,4 To DB25S pin 20 (CT~;) 6 2 Input from ABC-Net pin 3,5 - To DB25S pin 7 (GND) 7 3 GND to ABC-Net pin 2 9 'PR Output to DB25S pin 3 5 PR Input from DB25S pin 2 ..

Connectors on the connection box:

Printer ABC-Net

2 - 4 5 1 3 2 In data 3 Out data 7 GND 20 CTS (Busy signal 2 6 High=enable) 4 5 5 1 3 4

A 16 Kbytes memory card is required in the central unit. The DataBoard 2009 16K RAM is recommended.

The two c~rds shall be inserted in the DataBoard bus in one of the central disc systems. The on-board SIO is used for communication, channel A for the - ABC/DTC-net communication and channel B for the standard printer. ... Only one version of the central software is used. To modify the system parameters, the RAMOPT.SYS program is executed, after power-up or reset. (Chapter 9.4).

.. ABC/DTC-N~~ 7 - I 82-10-31

7. 7029 and 7030 TERMINAL UNITS

The terminal unit contains interface circuits for the ABC/DTC-net system and an operating system in EPROM, replacing the normal disc operating system and printer routines in the memory area of ABC800, Facit DTC or ABC80.

The terminal card is connected to the respective computer and no extra power supply is needed.

ABC800/Facit DTC requires the 7029 terminal card.

In ABC800/DTC, the normal printer routine may still be used to drive a local printer (device PR:), in which case the central printer will have the device name RPR:. The central printer can be used with the standard device name PR:, if the internal printer EPROM, marked no.7, in ABC800/DTC is removed. Note that also the graphics is removed together with the printer routines.

The terminal card is connected directly to the bus connector in ABC800/DTC (or to a bus expansion box).

ABC80 requires the 7030 terminal card.

The 7030 terminal card is delivered in a metal box with a 500 mm ribbon cable, for connecting to the ABC80 bus connector. No local printer can be used and the normal printer device name PH: is used for the central printer.

Terminal number and card select number

Each terminal shall have a unique terminal number (0-31) set on the dipswitch in position 1E on the card. The pins 1,2,3,4 and 5 are used to set the binary number. An open jumper indicates a binary "1" in the corresponding bit position.

0 0 0 0 0 III Example 2 + 8 , 0 decimal 0 0 0 0 0 Pin 1 Value: 1 2 4 8 1 6

The terminal number can be read with an INP STAT command on the connected computer, after selecting the card address 48 (=60 octal). The card select code is prewired on the card position 2A at delivery, with open jumpers at pin 5 and 6.

10 PRINT "Display terminal number" 20 OUT 1,48 30 PRINT (INP(1) AND 31)

2A Card select plug

Bus r/o

1E Terminal number plug ABC/DTC-NET 8 - 1 82-10-31 8. PRINTER

The central printer is common to all users. Printer output is queued up on disc files (spooling) and printed in the order - 'first-in' -- 'first-out'. The files are normal text files.

Full 8-bit bytes may be sent to the printer. NOTE, however, that control characters below 07 must not be sent, not to - interfere with the file control characters on the disc, which could cause loss of text. - 8.1 Printer access, Device names PR: and RPR: - Each user accesses the central printer in the normal way. OPEN "device name" AS FILE nn - output text ... CLOSE nn

where: "device name" is "PR:" or "RPR:". nn is the file number in the user program. - NOTE! Always CLOSE the printer device, as the printout on the central printer only starts after closing the printer device. - The terminal software simulates the printer driver and sends the printed text to a file in the central unit.

The ABC80 printer device is always "PH:". No local printer can be connected.

The ABC800/DTC printer device name can be "PR:" for the local printer and "RPR:" for the central printer. If the internal printer EPROM, marked no.?, is removed from the ABC800/DTC, also the device name "PR:" is directed to the central printer.Note, however that the printer EPROM also includes the high resolution graphics commands, which in this case is removed with the EPROM.

No printer options, like baudrate etc, may be given in the device name. If a different baudrate than the standard 2400 Baud shall be used, it must be initiated by the RAMOPT.SYS program. Other options, like paging, are not available.

8.2 Spooling

Output to the central printer is buffered on the central disc units. Several users may in this way use the printer at the same time without delays.

One print file is created for all text printed by each user, between the OPEN •• and CLOSE •• statements.

Information about the user of a print-file is not available, and each user is recommended to print a user identification as the first line of output. - ABC/DTC-NET 8 - 2 82-10-31

The printout of a file always starts with a formfeed (new page), unless the last printed character was a formfeed.

The printing order is given by the time each user closes the printer device. When the print-file is closed it is added to the queue of files, waiting to be printed.

Print-file names have the form PRINTnnn.QPR (or .ZPR) where 'nnn' is the physical file number on the disc. A print-file has the extension '.ZPR' as long as it is open. When closed, the extension is changed to '.QPR' at the same time as it is added to the print-queue.

At power-on or reset of the central units, after executing the RAMOPT.SYS program, the central discs are searched for print-files. All files, whose extension begins with '.QP' are considered as print-files and are used to build a new print-queue. Print-files, which were not properly closed and still have the extension ~.ZPR', must be renamed by the user with the '.QPR' extension to be printed out.

The print files are created on the first available disc in the default search order.( HDx:, MFx:, MOx:, SFx:)

8.3 Printer interface

8.3.1 Default V24(RS232C) interface

As stand,ard, V24 (RS232C) output is used to the printer with:

2400 Baud 8 data bits No parity One stop bit

Back-signaling (printer-busy) can be either by the CTS-signal or with XOFF/XON characters, sent back from the printer.

CTS: Pin 20 in the DB25S connector is also wired to pin 6. Printing is enabled, when a high level on pin 20 is detected from the printer.

XOFF!XON: Printing is inhibited at the reception of the XOFF (=13 HEX) character, until XON (=11 HEX) is received from the printer.

Changing baudrate are done by the RAMOPT.SYS program, which may change the setting of the central processor board.(Section 9.4) ABC/DTC-NET 8 - 3 82-10-31

The printer is connected via the connection box to the central processor card. The I/O pins on the DB25S socket on the box are:

Pin 2 In data (XOFF/XON only) 3 Out data tc printer 7 Ground - 20 DTR/CTS Back signal from printer. High level e n a b 1 e s p r inting • - 6 wired to pin 20 4 wired to pin 5 5 wired to pin 4 - 8.3.2 Optional printer interfaces - In the standard software, the following options are available:

4001 Centronics interface 4015 SP1 interface

The central system program automatically initiates the optional printer, if a printer interface with the card address - 74 octal is available at reset or power-up. If no interface is found on-line, the standard V24 printer output is selected. .. A separate DataBoard interface card is used, with the card address 14 octal(=60 decimal). See the 4001 or 4015 interface datasheets for details about these interfaces. ..

NOTE! that the I/O-slot for the optional printer interface in the central unit, shall be wired for interrupt. This is a wire from the I/O-slot pin 5A to the processor slot pin 13B.

Card address 74 octal is set on. a plug on the interface board:

0 0 0 a 0 0 I I 32+16+8+4=60dec=14octal 0 0 0 0 a 0 Pin 1 Value 1 2 4 8 1 6 32 .. -

...... ABC/DTC-NET 8 - 4 82-10-31

8.4 Print-output format.

The output to the printer is directed to a standard text file, which is read by the system and transferred to the central printer.

- Line-Feed characters can not be printed to the print-file, as they are ignored by the PRINT statement. Note, however, that the routine to transfer the print-files automatically inserts a Line-Feed (10 dec.) after each Carriage Return (13 dec.). Thus use CHR$(13) instead of CHR$(10) to print Line-Feeds. Or use successive ;#F : ;#F : ;#F etc. Record I/O may be used to output CHR$(10) as line-feed characters directly.

2 - Do not print control characters below 07. Especially the characters 03 and 00 should not be used. Printers needing NULL characters as line fill can not be used.

3 - Also 8-bit data may be printed.

4 - Data may be output to the print-files also with record I/O statements (PUT in ABC800). This could be recommendable when generating graphics. ABC/DTC-NET 9 - 1 82-10-31 9. ABC/nTC-NET UTILITY SOFTWARE - Special ABC/DTC-net versions of the following programs are used:

COPYLIB.ABS COPYLIB.BAC DOSGEN.ABS DOSGEN.BAC DISKCHEK.ABS DISKCHEK.BAC UFD.ABS UFD.BAC

MAKEUSER.BAC LOGIN.ABS LOGIN.BAC - RAMOPT.SYS RAMOPT.BAC SETSTART.BAC STARTUP.BAC STARTCf-lD. SYS

The BASIC (.BAC) versions are short programs to load and start ... the mashine code programs, and in some cases, to transfer user defined parameters to the system programs.

Different versions of the .BAC programs are used for ABC800/DTC and for ABC80. - -

-

... ..

.. ABC/DTC-NET 9 - 2 82-10-31

9.1 COPYLIB, DOSGEN, DISKCHEK, UFn

These programs are normally partly executed in the central processor unit.(Chapter 4). The procedure to use the programs are the same as the standard procedure, described in appendix 1 •

UFD

The UFD program must reside in the master file directory, but can only be executed by a 'super-user', i.e. a user with a super-user' privilege.(Chapter 3.2).

DOSGEN

The DOSGEN, as well as the RAMOPT.SYS program, can only be executed in the central unit. All other users are temporarily locked out during execution. However, DOSGEN will pause each 5 seconds and let" the system execute one request from another user. All users will continue their tasks, as soon as DOSGEN releases the system.

COPYLIB, DISKCHEK

The COPYLIB and DISKCHEK programs are normally executed in the central unit, but is automatically executed in the local computer if the central memory is occupied by another user when the program starts. If large amounts of data shall be transfered, local execution will be slow. - ABC/DTC-NET 9 - 3 82-10-31 9.2 MAKEUSER The MAKEUSER program can: .. - List already defined users (Not passwords) - Create new users - Delete users - - Rename users MAKEUSER can connect a user to a directory, but the UFn - program must be used to create or delete directories. The user parameters, associated with each user, are: - User name: Max 8 characters. Given at login.

Password: Max 8 characters. Given at login. May be Return only if not used. Directory: Optional. Should be a existing directory, - into which the user will enter automatically at login. If excluded, the user will stay in the master file directory at login. -

Privilege: Examples: (See chapter 3.2 for details). 1 Normal user. - 5 Normal user, which also may write to a disc with direct sector access. 255 Super-user with all options enabled. - The l'vlAKEUSER program should be accessible only to a s upe r-use r, by having the program within a super-user directory. -

Run the MAKEUSER program by:

RUN MAKEUSER

The display may be as in the following example:

** MAKE/DELETE USERS ** Verse 6.00 1982-08-10 Copyright 1982 Dataindustrier AB

Name Dir Privilege SD TJSERDIR 255 KJ DIRA 1

New, Delete, Rename (N,D,R,none)

- ABC/DTC-NET 9 - 4 82-10-31

None:

No answer (only RETURN): Exit from MAKEUSER.

New:

New user is created by the following questions. If a new user is created, with the same name as an old user, the old user is deleted and overwritten with the new user parameters.

LOGIN: No creation>

P ASS\-10RD:

DIRECTORY: Only MFD is accessible.>

PRIVILEGE privilege 1>

NEvI USER•••• DON E

Delete:

Deletion of a user is done with:

DELETE USER NAME: No delete>

WARNING! Do not remove the last super-user'. At least one user must be able to enter the ABC/DTC-net system. For creation of new users, the MAKEUSER must be available and MAKEUSER is normally in a super-user directory.

Rename:

Renamillg a user requires:

RENAME USER NAME: No rename>

NEW NAI»iE: No rename> ABC/DTC-NET 9 - 5 82-10-31

9.3 LOGIN

To enter the ABC/DTC-net system, the LOGIN.BAC program must be executed on the connected computer system. Before login, the - central system is write-protected and no direct access on the central discs can be madeo(E.g. the LIB.BAC and the COP YLIB. BACpr 0 g r a In sean [lot beex e cut e d • ) - Normally, a user will automatically enter into a user directory after the login procedure.

Several users may simultaneously login with the same user name and/or with different names connected to the same directory. (See chapter 3.3) - Note that the term 'USER' refers to a user name, and has no connection with the user terminal. At login, however, the .. central processor connects the user name to the terminal number.

The SETSTART program may be used to automatically login to a -- specified user at power-on or reset of the terminal computer system. (Chapter 9.5). - Run the LOGIN program by: RUN LOGIN - The system responds with:

LOGIN:

PASSWORD:

-

- - ABC/DTC-NET 9 - 6 82-10-31

9.4 RAMOPT.SYS

The RAMOPT program is used to modify the default parameters in the central unit, e.g. printer baudrate etc.

Parameters for the RAMOPT.SYS program are stored on disc by the RAMOPT.BAC program, which also will load and start the RAMOPT.SYS mashine code program in the central unit.

The RAMOPT.SYS is automatically executed at power-on or reset of the central unit, if the RAMOPT.SYS file is available. The parameters, earlier defined by RAMOPT.BAC on the disc, are used. Note that a Winchester disc is not available directly at power-on, as it is not ready until after 15 seconds. If the RAMOPT.SYS program on a Winchester shall be used, reset the central system again after this time. Alternatively run the RAMOPT.BAC program.

The RAMOPT.SYS program is not to be confused with the selfstart option in BASICINI.SYS, which is executed in the local computers at local power-on or reset.

The RAMOPT.BAC programs should be in a 'super-user' directory, not accessible to normal users. The RAMOPT.SYS file must be in the master file directory, as it shall be executed at power-up or reset.

Run the RAMOPT.BAC program, starting also RAMOPT.SYS, by:

RUN RAMOPT

The display will be:

** SETUP UTILITY ** Verse 6.00 1982-08-12 Copyright 1982 Dataindustrier AB

Any changes (yiN) ? .•

If the answer is not YES, the RAMOPT.SYS program is executed in the central unit.

If the answer is YES, questions about options are asked like in the following example. After answering all questions, the parameters are stored on disc and the RAMOPT.SYS program is loaded and executed in the central unit.

Printer baudrate:

SELECT BAUDRATE (xxxx) ? ••• The (xxxx) will be the earlier defined baudrate, taken from the disc. Ex. (2400). Answer return only to keep the earlier defined baudrate.

If an incorrect baudrate is given, the following is displayed:

ILLEGAL BAUDRATE, USE ONLY: 75,110,300,600, 1200,2400,4800,9600,19200 Baud. -- ABC/DTC-NET 9 - 7 82-10-31

9.5 SETSTART FOR ABC800/DTC

An auto-start feature is available for ABC800/DTC, which selectively can start different programs at reset or power-on on the different terminal computers, defined by the terminal numbers.

In addition, an automatic log-in sequence, giving the user name and password, may be defined for the terminal.

A super-user' may access the SETS TART program, to change parameters for all terminals, while each normal user may run SETSTART to set and change his own parameters only.

SETSTART is run to disable or enable auto-start and to define the auto-start program to be executed. SETSTART can also define the auto-login sequence. The parameters defined are - stored in the file STARTCMD.SYS, which is created, if not existing. The STARTCMD.SYS is stored on the first available disc, searching in the default order, MFx:, SFx:, HDx:. - The following files are used:

SETSTART.BAC - STARTUP.BAC STARTC~fD.SYS BASICINI.SYS - At power-on or reset of a local system, the BASICINI.SYS program chains to the STARTUP.BAC program, which decodes the terminal number and selects parameters for auto-start from the file STARTCMD.SYS. -

.. .. -

.. - ABC/DTC-NET 10 - 1 82-10-31 10. INSTALLATION

10.1 Physical connections

Other diskette DataStore or other units disc unit

Disc interfaces

Central DO printer

CPU RAM

Connection box 5-pin DIN audio connector 3-wire shielded cable

, I t I I , , I, f , , Terminal cards L__ ..J L__J •I '-- -_. with terminal ABC800 ABC800 number plug. Facit DTC Facit DTC In metal box with ribbon cable for ABC80. Local printer

ABC80 ACB80

The system components are listed in chapter 1. ABc/nTC-NET 10 - 2 - 82-10-31

10.2 Installing the central system with printer. -

10.2.1 The central unit

The 7028 central processor card and the RAM card shall be - inserted in the DataBoard bus in one of the central disc units. To this bus, also the interfaces for all other disc units are connected, as well as the optional printer - interface, if used. The cable from the connection box is connected to the 7028 - processor card.

The 7028 card shall be in the CPU-slot, marked with a coloured dot. The RAM card shall be in a memory slot to the right of the CPU-slot and the interfaces to the left. The DataStore 5/320 unit is used as example above, but any - DataDisc or DataStore unit with a DataBoard bus may be used. The free I/O slot may be used for an optional printer - interface or for extra disc interfaces.

NOTE! The interrupt must be wired from the I/O slots (pin 5A) to the CPU slot (pin 13B). -

10.2.2 The ABC-Net cable - The chain of terminal computers are connected via the ABC-Net cables to the connection box. ...

10.2.3 The central printer - If a standard V24 (RS232C) printer is used, the central printer is connected to the connection box. The cable from the printer shall have a DB25P plug for the socket in the - connection box. Note that the Busy-signal from the printer shall be on pin 20 or pin 6 on the connector and that a low signal level indicates busy to disable printing. Alternatively XOFF/XON signals are used.

'Nhen an optional printer is used, the interface is connected to an r/o slot in the DataBoard bus, which shall be wired for - interrupt. See the respective datasheets for the different interfaces. The card select jumpers shall be set to 74 octal (=60 decimal), i.e. with a closed jumper only on pin 1 and 2.

S P1 : 4015 interface and cable Centronics: 4001 interface and cable

10.2.4 Optional extra disc units.

When an external disc unit is used, the interface are moved to an I/O slot in the same DataBoard bus as the ABC/DTC-net processor. .. - ABC/DTC-NET 10 - 3 82-10-31

10.3 Installing 7029 to ABC800/Facit DTC.

The 7029 terminal board is inserted directly in the I/O slot in ABC800/Facit DTC.

First select a unique terminal number (0-31) with the jumpers on the terminal board position 1E.(Chapter 7).

If no local printer shall be connected and the low resolution graphics are not used, the internal printer EPROM within the ACB800/DTC may be removed to direct the printer device 'PH:' to the central printer. Otherwise the device name 'RPR:' is used for the central printer.

The terminal card is connected with ABC-Net cables to the nearest point in the chain (Chapter 5).

10.4 Installing the 7030 to ABC80.

The 7030 terminal card is delivered in a metal box with a 500 mm ribbon cable, which is connected to the bus connector on ABC80.

Installation is as for ACB800, with two exceptions:

A. The metal box must be opened to set the terminal number. B. No local printer can be used. The PR: device is the central printer. A local printer EPROM is not used. - ABC/DTC-NET 10 - 4 82-10-31 ... 10.5 Disc interfaces

10.5.1 4107 Winchester interface and Winchester disc format -

The DataBoard 4107 Winchester interface is used and provides efficient disc handling, using an on-board Z80A processor and - DIVIA. The DMA enables simultaneous data transfer between the - Winchester disc and the 4107 and between the 4107 and the ABC800/DTC.

The 4107 includes 6 sector buffers in RAM. Optionally more, if the 2K RAM chip in the 28 pin socket is replaced by a larger HAM chip(MOSTEK ByteWyde). No software change is needed when upgrading the RAM size. With 8K RAM, 30 sector buffers are available. The buffers provide quick access with the following method: - a) Two consequtive sectors are always read into the buffers at each physical disc access. b) Often used sectors are kept in the buffers. - By this means the data transfer of large files, stored in contiquous sectors are done with less than 10 ms/ sector. - The format used as standard on the winchester disc has 256 bytes sector and a cluster size of 32 sectors. The allocation of space on the disc in the bit-map is done in multiples of ... one cluster. The bit-map is in one sector (8x239 1912 clusters/disc x32 = 61184 sectors) and is in sector no. 14.

A logical disc device contains a maximum of 65535 sectors - (about 16 M bytes), limited by the 16-bit format of the ABC800/DTC pointer. For larger winchester units, each physical unit vill be divided into two or more logical devices, using - an optional controller EPROM on the 4107 interface.

The 4107 interface shall as standard have the channel select code 36 dec=44 octal, but with the switches 81, card select codes 40Q to 57Q may be selected. -

4107 S 1 (bitO)a ~ ( bi t1 ) b .~ 44Q RAJ·1 EPROlvl (bit2)c 83 S2 (bit3)d ~ I/O ... 2K ) > 2K BUS 4K • 8K

Pas 5C RAlv1 ..

.., ABC/DTC-NET 10 - 5 82-10-31

10.5.2. 4106 Mini-floppy interface

The 4106 DataBoard Minifloppy interface is used, which is standard for ABC800/DTC 51/4" mini-floppy. The 4106 includes its own Z80A microprocessor and is delivered with the A6 controller EPROM for Double Track minifloppy drives or with the A5 controller EPROM for Single Track minifloppy drives.

Double...... Track...... controller...... EPROM..vers.6...... (A6).....

A6.xx Used with Double Track 51/4" drives only. Double Track (Single Track for reading only) Double Side/Single Side, Switch selected Double Density only!

The A6-controller EPROM provides a read-ahead buffer with 3 sectors on the 4106 board to minimize the average access time.

Using a double track drive and the A6 EPROM, DOS may simulate a single track drive stucture, while READING only. See section 5.2 for details.

The A6 controller EPROM, version 6.10 or later, is automatically 'write-protecting' the disc when single track is selected on the interface switch.

Single...... Track.....controller...... EPROM...... Vers.5...... (AS). A5.xx Single Track only. Single Side/Double Side, Switch selected. Single Density/Double Density, Switch selected.

The A5 controller EPROM are only used with single track diskettes. If the used mini-floppy is a single track version, the A5 EPROM should be used in DataStore. The A5 EPROM provides a buffer with one sector only.

Can also read and write on diskettes, DOSGEN:ed with the old DOSGEN (versions lower than 6.00), but be careful as the library size is changed in DOS version 6.00 and later. Not more than 120 files may be created on an old diskette. See section 5.2. ABC/DTC-NET 10 - 6 82-10-31

Jumpers and switches:

81 Open Card Select 55 Q (Single Track standard) .., Closed Card Select 54 Q (Double Track standard)

82,83 Close only one!

82 Closed 500 ns precompensation (Standard) - 83 Closed 250 ns precompensation

84,85 Close only one! -

34 Closed Precomp. program controlled (Standard) 85 Closed No precompensation

On the P3 connector (the 10 pin connector at the edge of the 4106) four switches can be connected. These are read by the controller EPROM and effects the storage format.

P3 connector Closed switch gives: pin pin A5 EPROM A6 EPROM -~~-~ .. ~~-~~~~~--~~-~--~--~-~-----~-~-~~--~-~~ Drive 0 9 1 Double Density Single Track ~ 5 Double Side Double Side Drive 1 0 2 Double Density Single Track ~ 3 Double Side Double Side

4106 S1 P LED 82 S 3> • P3 1::=1 DS1 ~ c::::I DSO BUS 84 > 1D t::J DD1 (S T1 ) S5 • t=I DDO (STO) ~ Cable to drives -

-

... -- ABC/DTC-NET 10 - 7 82-10-31

10.5.3 4108 Standard 8" Floppy interface

The 4108 DataBoard 8" standard disc interface includes its own Z80A microprocessor and is for ABC800/DTC delivered with the A8 controller EPROM.

The disc operating system only supports double density storage on the 8" floppy diskettes, but commands are available on the AS controller EPROM to handle also single density. This can be done with special programs, e.g. to use standard IBM 3740 storage format.

A 3 sectors read ahead buffer is provided on the interface to minimize the average access time.

Jumpers and switches:

81 Open Card select 55 Q Closed Card select 54 Q NOTE! To achieve the card select 56 Q, which is standard for the ne~ DOS vers 6.xx, the switch S1 shall be closed and the card shall be modified by the following: - Remove the connection from circuit 1C, pin 14 to circuit 1B, pin 9. - Insert a wire from circuit 1C, pin 14 to circuit 1C, pin 12.

8 0 o 9 o o o o o 0--, o o 1 <--- Connect! o ,-0-- o 1 0 o 1 016 <-----Remove! ABC/DTC-NET 10 - 8 82-10-31

32,33 Close only one! 82 closed as default! 82 Closed Use onboard EPROM 2716 (Default) 33 Closed Use onboard EPROM 2732

34,85 Close only one! 84 closed as default! 84 Closed 250 nsec precompensation 85 Closed 125 nsec precompensation -

36,S7 Close only one! S7 closed as default! S6 Closed Precompensation from track 43 - 37 Closed Program controlled precompensation (Default) NOTE! No precompensation is used by DOS.

38,89 Close only one! S8 closed as default! 38 Closed LO current to device on pin 2 (default) 39 Closed LO current to device on pin 16

On the 3P connector (the 10 pin connector), pin 3P:9 and pin 3P:6 shall be connected.

4108 - ~ ~ connect ...... - 8 1 82 83 3P :....r::. 34 ) • • - 35 ---• • 2P BUS 86 I/O 87 >

89 S8 > -

-

- - - ABC/DTC-NET 11 83-05-09

1 1. START-UP PROCEDURE

After installation of the system, all units are powered on.

The local terminals may be powered on or off at any time on-line.

If the RAMOPT.SYS shall initiate the central system, a diskette with RAMOPT.SYS shall be inserted before power-on of the central unit. If RAMOPT.SYS is on the Winchester disc, a reset of the central system must be done 15 seconds after power-on, as the Winchester disc is not ready until after 15 seconds.

Central system reset sequence.

At reset or power-on on the central unit, the ABC/DTC-net processor does the following:

1- Default initiation. 2- Check if an optional printer interface is connected, otherwise initiate the V24(RS232C) printer port. 3- Search the RAMOPT.SYS program on the connected discs/diskettes. If found, it is executed to initiate the system, using the parameters earlier stored on disc by the RAMOPT.BAC program. 4- Check for old print files, with the extensi.on beginning with '.QP'. Build a print queue and start printing. (Note that only closed printfiles are printed). 5- Start to scan the terminals for communication.

Terminal computer reset sequence.

At reset or power-on of a terminal computer, the following is done:

1 - Local initiation 2- Search for the BASICINI.SYS program on the connected discs/diskettes. The BASICINI.SYS starts the STARTUP.BAC program, which may do an automatic log-in and/or autostart of a user program, if t~ts sequence is enabled for the terminal number of the computer. 3- II no autostart is enabled, a normal signon is achieved on the terminal computer, waiting for an operator command. ABC/DTC-NET 11 2 83-05-09

Enter the ABC/DTC-net system.

To enter the system, the LOGIN.BAC program must be executed, unless it is automatically done •

.. RUN LOGIN

The LOGIN.BAC asks for the user name and password. A normal user only accesses his own directory and the master file directory.

A super-user accesses the entire central disc system, using the UFn program. When shipped, the login is 'su' and no password is used.

NOTE! that some system programs for ABC80 has different names. See appendix 2.

Create new users.

Run UFD.BAC or UFD.ABS from a super-user, to create new directories on the system. A user may also be created without a directory reference, accessing only the master file directory.

RUN UFD or BYE UFD, C NE\vDIR

Run MAKEUSER to define new user parameters or list the available users.

RUN MAKEUSER

Running programs.

Run programs exactly as in a single user environment. Note the available device names in chapter 2.1. - Example: RUN HDO:MYPROG

Note that both ACB80 and ABC800/Facit DTC can be used, in which case different versions of the BASIC utility programs are used. The .ABS programs can usually be executed in both ABC800/DTC and ABC80<,;

Using printer.

NOTE! Always CLOSE the printer device to start the printing!! Each print-file is printed on a new page.

With ACB800/DTC, use PR: for the local printer and RPR: for the central printer.

NOTE! that separate line-feed characters can not be printed as CHR$(10). Use instead CHR$(13), which is carriage return. A line-feed is automatically inserted after each carriage return. ..

- ABC/DTC-NET 12­ 83-05-09

12. TECHNICAL DATA

7028 Central processor card with connection box on a 1500 mm cable. System software in EPROM. System utility diskette.

ABC-Net cable Constructed by the user, using standard 5-pin DIN audio connectors and 3-wire shielded cable.

Max total 300 m cable length

7029 Terminal card for ABC800/Facit DTC. System software in EPROM.

7030 Terminal card for ABC80 in a metal box and with 500 mm ribbon cable. System software in EPROM.

Max. no. of 32 terminals

Communication Serial, asynchronous, 19200 Baud. All units connected to the same line.

Central printer Standard: V24(RS232C) 2400 Baud. No parity, One stop bit, 8 data bits. Baudrate changable via RAMOPT.SYS. Backsignaling, using either the CTS­ signal or XOFF/XON characters.

Optional: SP1 or Centronics in a separate interface.

Central discs UP t 0 1 2 dis c d e vic e a , 5" / 8" \v inc h est e r , 8" Floppies and 5 1/4" Mini-floppies.

A DataBoard bus is required in one of the central units.

Number of 6 files/user may be simultaneously open. open files

Protection Each user may have a user directory with files, protected from other users.

Common files may be write-protected.

File pointers are local in each terminal computer, which enables several users to access common files.

Local printer Only to ACB800/Facit DTC, a local printer may be connected, which is independant of the central system. The device RPR: is the central printer and PR: is the local printer. - APPENDIX 1 ABC/DCT DOS verse 6.xx

Appendix 1 contains a description how to use the system programs with DOS version 6.xx for ABC800/Facit DTC.

NOTE! THAT THIS APPENDIX IS AN EXTRACT FROM A DESCRIPTION OF THE GENERAL DOS 6.xx FOR ABC800/DTC.

THE INFORMATION IN THE ABC/DTC-NET MAIN MANUAL OVERRIDES ANY INFORMATION GIVEN IN THE APPENDIX 1.

The following DOS system programs are not used in the ABC/DTC-Net system. Any reference to these from sections, describing other programs are not valid.

SYS.BAC DEVDES.REL PRESTART.BAC ADDOPT.ABS SYSTEM.ABS ERRCOPY.ABC

Special versions of the system programs are needed to run on the ABC/DTC-Net system. The standard ABC800/DTC system programs can normally not be used. - -

- - - ABC/DTC-Net APPENDIX 1 DOX 6.xx - 82-10-31

HANDLING DOS 6.xx ABC800/FACIT DTC SYSTEM PROGRAMS

System programs are generally machine code (.ABS) programs, started from DOS. A short start-up program in BASIC is delivered with each program, making it possible to start the system programs with a normal RUN command in BASIC mode.

When starting a system program from BASIC, the program asks for the parameters, otherwise given in the DOS command line.

1. SYSDIR. SYS

System file, stored on disc by DOSGEN, when initiating a new disc. It contains pointers to the library and bit-map sectors and the short volume name, which may be defined at DOSGEN. SYSDIR.SYS is write protected. The disc operating system is, however, accessing the disc direct without using the SYSDIR file. ABC/DTC-Net APPENDIX 1 DOX 6.xx - 2 - 82-10-31 2. SYS.BAC, DEVDES.REL The SYS.BAC is not available in ABC/DTC-Net systems. -

-

- - - - ABC/DTC-Net APPENDIX 1 DOX 6.xx - 3 82-10-31

3 UFD.BAC or UFD.ABS (Optional utility.)

3.1 UFD - User File Directory Description.

The optional UFD program is used to subdivide a disc device into subdirectories in several levels. All types of disc or diskette devices can be subdivided into directories, using the UFD program.

A directory can be described as a file, sub-divided into several files, with a separate library. The minimum allocated space for a directory is 18 sectors (or the cluster size, if it is larger). Each directory can have other subdirectories etc. etc.

A User File Directory is treated as an extra device with a separate file library. File accesses are not permitted directly between different User File Directories. The device name of the current directory is always UFD:, independant of the directory name.

The UFD program is used to Create, Delete or Rename User File Subdirectories at different levels or to enter into or exit from a UFD (User File Directory)

System file space = Master File Directory (MFD)

User File Dir.(UFD) UFD level 1 1 eve1 1

Files

Files

UFD level 2

Files UFD level 2

UFD level 2 Files

UFD level :3 Files

Files

UFD level 3 etc. Files

e c. etc. ABC/DTC-Net APPENDIX 1 DOX 6.xx - 4 82-10-31 - To access a file in a user file directory, the user must first enter into the corresponding directory, using the UFn program. The user enters the tree - like structure from above, step - by - step. The 'MFD' and the first level 'UFD':s can be entered - directly from any UFD-level, if the UFD program is available in the master file directory. -

discs)

Files

Files can be created, modified and deleted under the current UFD without any conflict with files in other UFD's or MFD on any device.

Files in the master file directory (MFD) can be directly addressed from all directories.

Files in a UFD may have the same name as files in other UFn or r~FD • - If a file access is done without specifying the device name the system searches for the file on all accessible devices. the search order is:

1 Current UFD 2 Other devices in the order: Hn(O - 3), r~l F (0 - 2), Ma ( 0 - 1 ), SF (0 - 2). -

If only the current UFn shall be searched, the device name UFD: must be given.

Files are copied in both directions between the master file directory and the current user file directory with the COPYLIB or COpy program. A real copy is done of the file.

Listing the library with the LIB program, while within a UFD, only lists the files in the current UFD, if the directory UFD: is given. The LIB listing only lists the filenames and the name of all - subdirectories at a lower level, which have been created within the current UFD. .. - .. ABC/DTC-Net APPENDIX DOX 6.xx - 5 82-10-31

3.2 Running UFD

The program UFD is started by:

RUN UFD or by: BYE or by: BYE UFn UFD,Opt Name

Display: ** User File Utility ** Ver 6.00 1982-05-18 Copyright 1982 Dataindustrier AB

L- List current directory M- Assign master file directory F- Assign father directory R- Rename current directory C- Create a new directory D- Delete current directory none Assign to an existing directory

Give option (L,M,F,R,C,D,none): Filename?

Option: Function:

L Display current directory name and the names of the father directories up to the 'MFD'

Return to MFD (Master File Directory).

F Return to the Father directory, i.e. to the next higher level.

R Rename the current directory. The program asks for the new name. Extension must not be specified. UFD will set it to ".Ufd".

C Create a new directory under' the current directory and enter this new directory. The program asks for the new directory name. A new directory requires at least 18 consequtive sectors on a disc for the directory library. If the cluster size is larger, the minimum size will be the cluster size

D Delete the current User File Directory and return to the father directory. This requires that no files are left in the current directory. Delete the files before deleting the UFD. The files can be copied to the master file directory if they shall be saved.

none Enter into an existing user file directory if only RETURN is given as option. The program asks for the name of the directory. - ABC/DTC-Net APPENDIX 1 DOX 6.xx - 6 82-10-31 - 4. LIB.BAC or LIB.ABS

Display the file library of a disc unit.

All file names or selected file names on all connected disc units or on - a selected disc unit or on the current user file directory

may be displayed or listed on the printer. The space left on the disc is displayed in number of sectors. - Start by:

R UN LIB or by: BYE or by: BYE - LIB LIB,Opt Dir:File Display: ** Library list ** Ver 6.00 1982-05-18 Copyright 1982 Dataindustrier AB Directory to list? S- Size N- Filenumber F- File status P- Printer output none - Filenames only Options (S,N,F,P,none) ?

Device: (In 'Directory to list')

Device or directory name. ex. HDO: or ~lFO: or UFD:. To display files, only from the given directory. The current UFn is always called UFD:.

RETURN only. To display files from all accessible directories in the default search order.(UFD:,other devices).

Filename: (In' directory to list')

The beginning of the filenames to list. All files which begin with the characters given are listed.

The beginning of the extensions of the files to list. The dot '.' must be given before the characters. All files with an extension, beginning with the given characters are listed.

Both the beginning of the name and the extension may begi v en. - Ex: Filename(s): MY.BA Displays all files, of the form MY?????BA? -

- ABC/DTC-Net APPENDIX 1 DOX 6.xx - 7 82-10-31

Options: Functions:

Answer a combination of the options. Ex: SP. s List also file sizes. The size is given in sectors.

N List also the physical file number in octal notation. The physical file number is a direct file pointer in the disc library.

F List also the file status, as one letter in front of the filenames. The status can be: S Write protected. D Delete protected. p Direct the listing to the system printer. If a non-default printer option shall be used, it should be initiated before running LIB. none Default option, achieved by RETURN only, is to list filenames only on the display.

Under DOS, the LIB options and parameters may be given in the command line.

After displaying 20 lines on the screen, the listing halts and continues one line each time the operator presses any key.

To stop the listing, press RETURN or CTRL-C.

Listing of the library of a single track diskette, using a double track drive, may be done as the program checks the bit-map and library and temporarily uses single track commands if a double track structure is not found. Note that the switch on the interface must be set to single track. ABC/DTC-Net APPENDIX 1 DOX 6.xx - 8 82-10-31

The listing produced by LIB is structured as in the following example:

** Library list 6.00 82-05-18 **

Drive HDO: UFD: ~1 YDI R • U f d

MYFILE • TXT DOTS .BAC

Remaining space 60007 sectors of 61184

Drive HDO:

SYSDIR .SYS LIB .BAC LIB .ABS SYS .BAC UFD .BAC UFD .ABS DOSGEN .ABS Cnnr NT .ABS DISKCHEK.ABS ERRCOPY .ABS DELETE .ABS BASICINI.SYS PRESTART.BAC COPYLIB .ABS COpy .ABS REPROT .BAC SYSTEl~ .ABS ASr~IZ .ABS OBJUPD .ABS ESTAB .ABS DEBUG .ABS EDIT .ABS PROM .ABS PASCAL .ABC PASCOMP .COD FORT80 .ABS l1YDI R • Ufd YOURDIR • Ufd - Remaining space 60007 sectors of 61184

Drive ~IFO : SYSDIR .SYS LIB .BAC LIB .ABS SYS .BAC DOSGEN .ABS UFD .BAC UFD .ABS CMDINT .SYS COPYLIB .ABS HISDIR • Ufd HERDIR • Ufd Remaining space 573 sectors of 1220

-

-

- ABC/DTC-Net APPENDIX DOX 6.xx - 9 82-10-31

5. BASICINI.SYS

The file BASICINI.SYS contains BASIC error text lines and can be provided with a selfstart routine, which automatically is executed at power-up or reset. The first sector of the BASICINI file contains the selfstart option as well as pointers for the text strings in the following sectors. This sector is loaded into DOS-buffer 0 (OF500H-OF5FFH or from 62720 dec) if available at reset. The sector is kept in the ABC800/DTC memory during normal program execution.

5.1 BASIC Error Text strings.

The system checks if the BASICINI.SYS file is available at power up or reset. If not, all Basic errors are displayed as error numbers only.

5.2 Selfstart option.

The first sector of BASICINI.SYS contains:

1 - If a jump instruction is stored in the first three bytes (=OC3 Hex), the ABC800/DTC executes the jump and the machine code routine that can follow in the sector.

2 - Note that the first part of the sector also contains pointers for the error text. The pointers follows directly after the three byte area, reserved for the jump instruction.

3 - If no jump instruction is found, ABC800/DTC tries to decode and execute the first characters in the second part of the sector as a BASIC command line in list format. The command line must be terminated by a carriage return (OD Hex). The program PRESTART.BAC may be used to store a command line in BASICINI.SYS.

4 - If none of the above is found, a normal start-up of the BASIC interpreter is done.

5.3 Option system loading.

For the ABC/DTC-Net system, see the RAMOPT.SYS program. - ABC/DTC-Net APPENDIX 1 DOX6.xx- 10 82-10-31 - 6. PRESTART.BAC, ADDOPT.ABS

The PRESTART or ADDOPT is not used in ABC/DTC-Net systems. See .. instead the SETSTART and RAMOPT.SYS programs in ABC/DTC-Net. .. .. - -

- - - - - .. ..

.. - ABC/DTC-Net APPENDIX 1 DOX 6.xx - 11 82-10-31

7. CMDINT.SYS

This is the command interpreter program, decoding direct commands running under DOS (The disc operating system). Mashine code (.ABS) programs are loaded and executed, using CMDINT.SYS.

CMDINT.SYS is loaded and executed from BASIC with the command:

BYE

The disc operating system displays: ** Disc operating system Ver. 6.06 ** Ver 6.00 1982-05-18 Copyright 1982 Dataindustrier AB

The first version number is the DOS version, the second is the version of the CMDINT.SYS program.

This requires that the CMDINT.SYS file is available. Otherwise the system stays in BASIC mode.

Re-entry to BASIC from DOS is done with the command.

$BAS

After entering DOS the name of any .ABS file is given to load and start the .ABS program. Switches and/or parameters can be Biven in the command line. Switches are one or more alfanumeric characters separated from the program file name with only a comma. Parameters are file names or other text strings separated from the program name and/or the switches by one or more spaces.

The .ABS program is responsible for decoding the switches and/or parameters which are available in the DOS command buffer (from OCOBOH and up.). However after loading the .ABS program, DOS automatically tries to interpret the parameters as file names and create a logical file table of 16 bytes for each parameter, starting at address OFD40H and up. .. ABC/DTC-Net APPENDIX 1 DOX 6.xx - 12 82-10-31

The logical file tables are configured as:

1 byte Drive number 0-31 or OFF Hex (unspecified) .. 1 byte Always OFF Hex 8 bytes File name 3 bytes Extension, if given (otherwise space) .. 3 bytes Device name, if given (Otherwise space)

The CMDINT. SYS is loaded at the address OCOOOH-OC6FFH. Useful addresses are: - OC100H Entry. Display prompt.

OC103H Reentry without prompt. -

OC106H Entry to a routine, loading and starting an .ABS file given in the command line. RETURN - (=ODH) must follow the command line.

OC109H Entry to a routine, displaying text. Register HL in the Z80 processor shall point to the text string. The last character in the text string shall be "RETURN" (=ODH) or "EOT" (=03H). - aeaOOH Entry to a routine for reading a string of text from the keyboard. Register HL shall point to the buffer, where to .. store the string. Register C shall be the maximum number of characters to read. .. Reading is done until a RETURN is typed or until the maximum number of characters are read. Each character is echoed on the screen. ..

The DOS revision number, taken from the address 606FH, is displayed when staring CMDINT. The DOS type is indicated in the address 6070H: 0 ABC800 1 ABC80 2 RAr1-0S .. 3 ABC/DTC-NET Central (~1ultiuser) 4 ABC800 - NET Terminal .. 5 ABC80 - NET Terminal " -

.. - - ABC/DTC-Net APPENDIX 1 DOX 6.xx - 13 82-10-31

8. SYSTEl~.ABS

SYSTEM.ABS is not available in ABC/DTC-Net systems. - ABC/DTC-Net APPENDIX 1 DOX 6.xx - 14 82-10-31

9. DOSGEN.ABS

DOSGEN are used to format and/or initiate the Winchester disc .. as well as 8" and 5 1/4" diskettes.

Start by: BYE or BYE or BYE DOSGEN DOSGEr~ device: DOSGEN,F device: Display: - ** DOSGE~N ** Ver 6.00 1982-06-07 Copyright 1982 Dataindustrier AB .. Device? •••• Shall formatting be done (Y/N)? The disc in •••• wi1l be cleared completely at initiation. Is this OK? •••• - Absolutely sure ??? ••••

If formatting is selected and the A5 controller EPROM is used .. on a minifloppy device, the following question is asked: (The A6 controller EPROM always uses double density.)

Single or Double Density? (S/D) •••• - 'Device:' is a disc/diskette device name (Ex. RDO:). - 9.1. Formatting AND initiating a disc.

Formatting means that the entire disc is erased, the disc is .. subdivided into sectors (soft sectors) and sector headings are written. Dummy data is written into all sectors on the disc and sectors, in which writing were not successful, are marked as not-usuable in the lock-out map.

The \iinchester disc is formatted at delivery, as well as 8" diskettes, while the 5 1/4" diskettes must be formatted by the user. The DOSGEN,F command also does the initiation below. .. 9.2 Initiate a disc/diskette, but do no formatting. - DOSGEN does the following:

- Erases all files on the disc/diskette and clears the library, the bit-map and the lock-out map.

- Reads all sectors on the disc, marking bad sectors in the lock-out map and the bit-map to prevent further use of these sectors. Bad sectors are reported. During reading, the sector numbers are displayed on the screen.

- Writes the library, the bit map, the lock-out map and the SYSDIR.SYS file on the disc/diskette.

Optionally a name may be given after the device in the command - line for starting DOSGEN. This name shall have the format of a file name (Name=8 characters, extension=3). This name is stored in the SYSDIR.SYS file on the disc. - - ABC/DTC-Net APPENDIX 1 DOX 6.xx - 15 82-10-31

10. DISKCHEK.ABS

The DISKCHEK.ABS program checks the entire disc and repairs repairable errors. All errors are reported.

It checks the lock-out map, the bit map, the library sectors and the record index blocks for each file on the disc. All sectors belonging to any file is checked, but free disc space is not checked.

Errors are displayed, if found, and the operator may select to repair the sectors or not. Some hard errors can not be repaired within the file. Use the ERRCOPY program to copy the file and remove sectors with hard errors.

Repairable errors are:

1. Lock-out map errors. Repaired.

2. Bit-map errors. Repaired.

3. Files, not properly closed. Closed.

4. Bad UFn header sectors. Repaired.

5. Sectors with CRC hard errors from the disc controller are repaired by writing back the data, which could be read from the sector, but with the correct check-sum. This may be wrong data, but is the best possible.

6. Record format error in a RIB, Record Index Block. This can not be repaired, but the operator can select to d e Le te the entire file, whose RIB is bad.

7. Bad filename in the library. Can not be repaired, but the operator may delete the file.

Non-Repairable errors are:

1. All hard errors, but a CRC error from the disc controller.

2. Data errors, which can not be detected by the system.

3. Record Format Errors. See below.

Warnings are:

Record Format Errors in a data record. This might not be a real error and is not repaired. It can be the result of unsuccessful write attempts, which have been re-written in another disc position. It may also be un-used sectors in a file, which has not been properly closed. Diskchek closes open files, but records with in the last cluster, after the last allocated sector can still cause 'record format error' messages. - ABC/DTC-Net APPENDIX 1 DOX 6.xx - 16 82-10-31

Start the DISKCHEK program by: BYE .. DISKCHEK Display: .. ** DISKCHEK ** Ver 6.00 1982-05-19 Copyright 1982 Dataindustrier AB - Device to check:..... W - Display also warnings. D- Display filenames during check. - N- No repairing. No changes on disc/diskette. Y- Correct all failures found. F- Fast check, Warnings will not be checked. - Options (W,D,N,Y,F,none)

The default options when only RETURN is given (none) is: .. - Check all filespace on disc. Do not display warnings. - Do not display the filenames. Display errors and ask operator to select repair or not. -

During testing, the operator can break and exit to DOS by typing CTRL-C. The keyboard is checked each time any display .. appears.

A temporary paus in the DISKCHEK listing of errors and filenames is achieved by keeping any key pressed. Be patient, testing takes a few minutes. .. Under DOS the parameters may be given in the command line.

Example: ... DISKCHEK, \~D HDO: .. .. - - - - - ABC/DTC-Net APPENDIX 1 DOX 6.xx - 17 82-10-31

11. ERRCOPY. ABS

ERRCOPY is not available in ABC/DTC-Net systems. - ABC/DTC-Net APPENDIX DOX 6.xx - 18 82-10-31

12. COPYLIB.ABS

COPYLIB is used to copy files from one directory or device to another, using the library for selecting files. Files can be - copied between discs and/or diskettes as well as between the current User File Directory (=directory UFD:) and the master file directory (=the device name). - Start by: BYE COPYLIB Dir1 :Fileselect,Dir2:

or use the options COPYLIB,V or give only COPYLIB and the program asks for parameters. -

COPYLIB will copy files from 'Dir1:' to 'Dir2:'. Directory names like HDO:, MF1:, UFD: etc. are used. - The files in the library of 'Dir1:' is displayed one after the other. The operator selects for each file if the file shall be ... copied or not.

If the 'Fileselect' character string is given, COPYLIB ignores files which do not correspond to the select criteria. See the - description of the LIB.BAC program for the select criteria. The display after start-up is a prompt like in the following - example, indicating the different possible commands to give for each file:

COPYLIB UFD:.BAC,HDO:

** COPY FILES ** Ver 6.00 1982-05-17 - Copyright 1982 Dataindustrier AB AVAILABLE COMMANDS: A COpy ALL REST OF LIBRARY X EXIT, DO NO COPYING I IGNORE THIS FILE AND REST OF LIBRARY Y YES, COPY THIS FILE Y=NEWFILE.EXT COPY, GIVING FILE A NEW NAME

COpy NYFILE .BAC ?Y

If only RETURN is given as answer, the file will not be copied. .. Note that the SYSDIR.SYS file is not listed, as this file must not be copied. During the copying phase, each filename is displayed and the - number of sectors in the file. - - - ABC/DTC-Net APPENDIX 1 DOX 6.xx - 19 82-10-31

When the verify option is specified, the COPYLIB will compare the old and new files after copying, and display error if the files are not equal.

When files are to be copied, using a double track drive, FROM a single track mini-diskette TO a double track mini-diskette, a special feature of the COPYLIB program can be used. The program will automatically use single track commands if the diskette structure is not double track. The device parameters will temporarily be set and reset during the copying phase. The switches for single/double track on the 4106 interface should be set according to the diskette format.

NOTE! DO NOT copy TO a Single Track minifloppy with a double track drive!!

If COPYLIB is started without parameters, the program asks the operator for the parameters according to the following example:

Original Drive unit? Drive unit for copy? Verification? File to copy? Available command - ABC/DTC-Net APPENDIX DOX 6.xx - 20 82-10-31

13. COPY.ABS Copy one file between devices or within the same device. - Start by:

BYE COpy Device:Filename.ext,Newdevice: or COpy Device:Filename.ext,Newdevice:Newfile.ext - If COpy is started without parameters in the command line, the program asks the operator for the parameters according to the .. following example:

Original Drive unit? Drive unit of copy ? - File to copy? : New file name? : ..

-

-

- - ABC/DTC-Net APPENDIX 1 DOX 6.xx - 21 82-10-31

14. DELETE.ABS

DELETE.ABS is used to delete files on a device, using the library for selection. The file selection is done exactly as in the COPYLIB program.

Answer RETURN for files which shall not be copied.

See COPYLIB.ABS for more information.

Start by:

BYE or BYE DELETE DELETE Drive: File

Display

** Deletion of files ** Ver 6.00 1982-05-19 Copyright 1982 Dataindustrier AB Drive unit? •••• Delete file? •••• Available commands: A- Delete all files left X- Exit, No deletion I- Ignore this file and rest of library Y- Delete this file

Del e t e ~1 YFI LE .BAC ?•••• - ABC/DTC-Net APPENDIX DOX 6.xx - 22 82-10-31

1 5. REPROT. ABS

The user may change the software protection status of a file, using the REPROT program.

One of the options 'W', 'D' or 'X' is given.

Option: Function: w File is write protected. The file is - also delete protected.

D File is delete-protected. Writing is however permitted. x Protection is removed from the file. - Start by:

BYE R EPROT

Display:

Filename : Options (X,Vl,n)

- - - - -

- - - Appendix 2

Modifiering av kort 4108 fo~ nytt kanalval (56Q)

Bygla pin 12 och 14 pa krets pOSe 1C. Frigor pin 14:s anslutning till krets pOSe 1B.

Modification of board 4108, new channel selection (56Q)

strap pin 12 to 14 on circuit pOSe 1C. Cut connection from pin 14 to circuit pOSe 1B.

9 0 0 0 c5-o ...~o 0 16 ~----

800 0 0 0 0 0 0 1

1 2 c •• ••• ••• ••• • ••••• ••••• B •• •• •• •• •• A •• •• •• •

Bus-side I/O-side -

-

.. -

- - .. -

- - --

- - - Appendix 3

ABCB02 Net kabel.

ABC802 DB9 Hona Net DIN hane 6 (------> 3,5 7 (------> 2 3 (------> 1,4

Strap: 1 On 2 Off 3 On 4 On 5 Off 6 Off 7 Off B Off - - - -

-

- -

-

.. -

- - AP PEN DIX 4 -

- ..

-

-

-

------Uppkopplingsanvisning fo~ ABC/DTC-NET 1983-05-21

1. Besk~ivning:

FoZjande komponente~ inga~ i systemet:

Cent~aZko~t, p~od.n~. 7028, inkZ. koppZingsdosa och systemskiva.

16 K statiskt RAM; p~od. n~. 2009/16.

Te~inaLko~t, p~od. n~. 7029 - fo~ ABC 800/DTC eZle~ p~od. n~. 7030 - fo~ ABC 80 Foljande massminnen kan anvandas:

5" Floppy: DataDisc 5, -82 ocn -84 Luxo~s samt Facit's jioppyenhete~

8" Floppy: DataDisc 88, 888

5" Wincheste1': Data8to~e 5, 10

8k~iva~e med Cent~onic8, 8Pl eZZe1' V-24 inte~face kan ansZutas cent~Zt, samt sk~iva~e med V-24 inte~face lokaZt, dock ej till ABC 80

II. Uppkoppling

Cent~Zko1'tet ansluts tiLL den pZats i expansionsdelen da~ no~alt bus8ansZutning tiZl dato." ske.". Ko~tet a~ obepoende av sto~Zek p& massminnet. Ramko~t ansluts till nagon av kor-tplatsePna till hoger- om cent~Zko~tet (f~if~n sett) Ramko~tet skaZZ ges basad~e8s 48 K.

Ramkort: 2009 Leuererae fiiradigbygZad fo~ ABC/DTC-NET.

Obsepvem att ABC/DTC-NET base~s p& Supe~DOS 6-121 viZket g{-!;; nya kanal.val: for- 8" floppy samt 5" jioppy-doubZe truck. Andr-inq av kanal.ual. fo~ DataDisc 88 beekr-ive i NET- manual-en: Fo~ 5" floppy dndrae kanal.ual: enZigt foljande: BygZing 81 i pos 1a skaZZ bugZas. ..

e > u..... :-e::J- ~------...... -

0>~ ...._-----_...I r-t• u -

N U N N ....Q. I~ I > ~ I ~ - 00

'"&It an.... =-e:::J- ,.II------I~ . • 000 o 000000000000 000 0 0 0 0 000 o Q II (JU 00000 0 0 000 0 0 0 0 0 0 0 0 0 0 "'''' - 000 o R *~I

e, en- -

AnsZutning av te~inaZko~t ske~ till datOPnB busskontakt. Koratet skjuts in i Zedig ko~tpZat8 i ABC 800/DTC, medan det - ansluts via f1atkabeZ till ABC 80. Va~je korat skall ges ett unikt numme~ i systemet vilket ske~ med adpe8splugg i POB 1e. Bygling qe» varde , Bxempel.:

.. 1.0- -~ ::: :~ ~ - \ =2+4+8 = terminal nummer 14 1 2. 4 8 it. 32 ....

Te~inaZkoraten kommuniceraa~ med cent~Zkoratet via en ~k (pin 1 till pin 1) t~eZedarakabeZ. -

III. Uppstarat - lf i d anvdndande av medl.euererad systemskiva ekal. Z inZoggning ske. Ko1' praog~et Login. BAC (ABC 800/VTC) e1,le1' Lin 80. BAC (ABC 80) Login = SU Passworad = ... Daraeftera kan Lib. BAC (ABC 800/DTC) elZe1' Lib 80. BAC (ABC 80) kbrae , FoZjande skaZZ finnas p& skivan: -

- J.

DY'ive X ufd:useY'dira Dosgen. ABS Diskcheck.ABS Diskcheck.BAC Makeusera.BAC Dosgen.CEN Diskcheck.CEN Ramopt .BAC MkusefJ80.BAC *DSKCHKBO .BAC *Ramopt80 .BAC Names.SYS

Draive X SusdifJ.SYS Lib.BAC CopyZib.ABC Copy.ABS DeLete.ABS Basicini.SYS ufd.ABS ufd.BAC Lib.ABS Cmdint.SYS Login.ABS CopyZib.CEN

star-tup .BAC Staratupl.BAC Login.BAC

Preetiart: .BAC Reprot: .BAC Reprot: .ABS Ramopt.SYS setetart: .BAC Star'tcmd.SYS

*LinBO.BAC *LibBO .BAC ~ufdBO.BAC useradira.UFD

Praog~ marake~de "Jed aetier-iek ara ABC 80 ver'8ioner'~

I For' att fa utskraift av Lib. ABS p&, cent-ral: skY'ivd>rae ekal.l: praog~et kO~8 enZigt foZjande: - LIB, RPR: (endast ABC 800). 4. - KOPIERING AV SYSTEMSKIVA ABC / DTC - NET

Eorutieiit.tmi.naa»: ABC/DTC-NET innehdl.l-e» ABC USERDIR.Ufd ...

USERDIR.U!d innehaZZeY' systemppogY'am och kan endaet: anodndae av SUPERUSER. - SUPERUSER: Login: SU PasswoY'd: < - RETURN mapkePas i texten med < ABC/DTC-NET i MOO:och ny skiva i MOl: - PROCEDUR:

1 • Tpyck p& RESET ocb LOGGA IN

2. BYE < DOSGEN,F MOl: < .,. FORMATTERA NYA SKIVAN .,. - J

6. UFD < .,. GA. OVER TILL USERDIR pA. MOl: .. < ... M01:USERDIR <

7. < .. KOPIERA MASTERFILE MOl: TILL COPYLIB M01:,UFD: < USERDIR .,. - A"·

8. UE'v < * cJ. OVER TILL MASTERFILE MOl: * M < -

9. < .. RADERA MASTERFILE MOl: .,. DELETE < MOl: < < A < - 10. COPYLIB MOO: , MOl : < .,. KOPIERA OVER MASTERFILE A < FRAN MOO: TILL MOl: .,. BAS <